Product Introduction
Our CSF-500 auxiliary parts package includes three fully coordinated component sets: KB-75 pulsation dampener spares (bladders, sealing rings, pressure gauges, valve components), a dedicated charging hose assembly (connectors, hoses, sealing hardware), and JA-3 shear relief valve parts (shear pins, plunger seals, bumpers, retainers). Crafted from high-pressure resistant elastomers, heat-treated alloy steel, corrosion-resistant brass, and pressure-rated stainless steel, all components meet strict API 7K standards, making them the reliable choice for routine maintenance, emergency repairs, and full system overhauls for CSF-500 mud pumps.
Functional Specifications
- Pulsation Suppression: The KB-75 dampener bladder and precision sealing components absorb hydraulic shock, reducing pressure fluctuations by up to 45% and protecting the CSF-500 pump, pipelines, and connected fittings from fatigue failure and premature wear.
- Overpressure Protection: The JA-3 shear relief valve activates at calibrated pressure thresholds via precision-engineered shear pins, instantly relieving excess system pressure to prevent catastrophic damage to the CSF-500 pump’s fluid end and power end components.
- Safe Charging Capability: The dedicated charging hose kit enables secure, leak-free gas charging of the pulsation dampener, with threaded connectors and seals rated for the full 25MPa service pressure of the CSF-500 pump.
- Real-Time Pressure Monitoring: The 0-25MPa pressure gauge provides instant, accurate visibility of dampener pressure, allowing technicians to maintain optimal charging levels for peak pulsation dampening performance.
- Leak-Free Sealing: Precision-machined sealing rings, plunger seals, and gaskets maintain consistent pressure integrity under continuous cycling, eliminating fluid and gas leaks in the CSF-500 pump’s auxiliary systems.
Structural Characteristics
These CSF-500 auxiliary components feature a rugged, service-friendly modular design tailored for field use: the KB-75 dampener uses a bolted studded assembly for quick bladder replacement, the JA-3 shear valve has a captive shear pin design for fast safety reset and minimal downtime, and the charging hose uses standardized threaded connectors for universal fit with common charging equipment. All parts are fully interchangeable with OEM hardware, allowing targeted replacement of worn components instead of full system swaps, reducing repair costs and labor time significantly.
Applicable Operating Conditions
These components are engineered to perform reliably in harsh drilling environments suited for the CSF-500 mud pump: onshore land drilling operations, shallow to medium-depth oil/gas exploration, geothermal drilling, and high-solid abrasive mud circulation. They tolerate extreme temperature fluctuations (-20°F to 220°F), continuous 25MPa pressure cycling, high-vibration rig conditions, and exposure to corrosive drilling fluids, making them suitable for remote land rigs, mobile drilling units, and small commercial drilling sites worldwide.
Maintenance & Servicing Recommendations
To maximize component lifespan and ensure safe operation of the CSF-500 pump, follow these industry-approved protocols: inspect the KB-75 dampener bladder and R39 sealing ring every 300 operating hours for cracks, wear, or leaks, replacing damaged parts immediately; check JA-3 shear relief valve shear pins and plunger seals quarterly, replacing worn components to maintain calibrated pressure protection; calibrate the 0-25MPa pressure gauge semi-annually to ensure accurate readings; inspect charging hose fittings and seals before each use, replacing damaged hoses to prevent charging hazards; clean valve components and pipe tees regularly to remove sediment buildup; and torque all UNC studs and nuts to OEM specifications to maintain pressure integrity and prevent loosening from vibration.
- We supply the following spare parts:
| KB-75 Pulsation Dampener List Part | ||
| Item No. | Description | Part No. |
| Assembly drawing | CS33001-08.00 | |
| 1 | Sealing ring R39 | CS33001-08.01 |
| 2 | Bottom plug | CS33001-08.02 |
| 3 | Bladder | CS33001-08.04 |
| 4 | Studded assembly | CS33001-08.03 |
| 5 | Head | CS33001-08.05 |
| 6 | Steel pipe tee NPT1/4 | CS33001-08.11 |
| 7 | Close nipple NPT1/4 | CS33001-08.15 |
| 8 | Gauge cover | CS33001-08.10 |
| 9 | Purge valve | CS33001-08.08 |
| 10 | Pressure gauge (0-25Mpa) | CS33001-08.12 |
| 11 | Needle valve | CS33001-08.18 |
| 12 | Washer | CS33001-08.13 |
| R1 | Stud | 1 1/4″-12UNC-2A |
| R2 | Nut | 1 1/4″-12UNC-2B |
| R3 | Stud | T53-4002(AM33x2-M33x3x100) |
| R4 | Nut M33x3 | T57-2009 |
| Pulsation Dampener Charging Hose & Instruction | ||
| Item | Description | Part No. |
| Pulsation dampener charging hose | CS33001-31.10.00 | |
| 1 | Nut G5/8″ | CS33001-31.10.01 |
| 2 | Sealing connector | CS33001-31.10.02 |
| 3 | Hose, C-type, M14x1.5 | JB1887-77 |
| 4 | Connector | CS33001-31.10.03 |
| 5 | Gasket | CS33001-31.10.04 |
| 6 | Pipe plug | CS33001-31.10.05 |
| JA-3 Shear Relief Valve List | ||
| Item No. | Description | Part No. |
| JA-3 Shear relief valve | CS33003-00 | |
| 1 | Adapter bushing | CS33003-01 |
| 2 | Plain washer | CS33003-02 |
| 3 | Plunger seal | CS33003-03.00 |
| 4 | Body | CS33003-04 |
| 5 | Plunger stem | CS33003-05 |
| 6 | Bumper | CS33003-06 |
| 7 | Roll pin | CS33003-07 |
| 8 | Cover spring | CS33003-08 |
| 9 | Cover | CS33003-09 |
| 10 | Shear bar | CS33003-10 |
| 11 | Shear pin | CS33003-11A |
| 12 | Warning plate | CS33003-12 |
| 13 | Shear bar pin | CS33003-13 |
| 14 | Retainer ring | CS33003-14 |
| 15 | Name plate | CS33003-15B |
| 16 | Cotter pin 4×26 | GB91-86 |
| 17 | Nut M4 | GB41-86 |
| 18 | Cap screw M4x16 | GB67-86 |
| 19 | Bolt M10x110 | GB5780-86 |
| 20 | Nut M10 | GB41-86 |
| 21 | Cap screw M3x8 | GB67-86 |
Field Failure Repair Case Studies
Case 1: Ruptured KB-75 Bladder Causing CSF-500 Pump Pulsation Issues
A CSF-500 mud pump on a land drilling rig experienced extreme pressure pulsations and pipeline vibration, traced to a ruptured KB-75 dampener bladder. Replacing the OEM-grade bladder and R39 sealing ring restored stable pressure regulation, eliminating pulsation-related stress on the pump and piping.
Case 2: Degraded Shear Pin Disabling Overpressure Protection
A drilling crew noticed the JA-3 shear relief valve failed to activate during a pressure spike on a CSF-500 pump, caused by a degraded shear pin. Installing a new OEM-spec shear pin and inspecting plunger seals restored full overpressure protection, preventing potential pump damage.
Case 3: Faulty Charging Hose Connector Hindering Dampener Charging
Technicians were unable to properly charge the CSF-500 pump’s pulsation dampener due to a leaking charging hose sealing connector. Replacing the connector and matching gasket created a tight, pressure-resistant seal, enabling safe and efficient dampener charging.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible only with the CSF-500 mud pump? | Yes, all components are precision designed for the Sichuan Petroleum CSF-500 mud pump, matching the KB-75 pulsation dampener and JA-3 shear relief valve OEM specifications exactly. |
| What is the pressure rating of the included pulsation dampener gauge? | The pressure gauge is calibrated for a 0-25MPa range, the standard operating pressure for the CSF-500 mud pump’s pulsation dampener system. |
| Does this kit include full parts for both dampener and shear valve? | Yes, it includes all essential spares for the KB-75 pulsation dampener, dedicated charging hose, and JA-3 shear relief valve, covering routine repairs and maintenance for the CSF-500 pump. |
Conclusion
This CSF-500 mud pump KB-75 pulsation dampener and JA-3 shear relief valve parts list is your definitive, API 7K-compliant resource for all auxiliary pressure system procurement, maintenance, and repair needs. It eliminates the risk of ordering ill-fitting, low-quality components that compromise safety and performance, provides clear part numbers and specifications for seamless, accurate ordering, and establishes a reliable technical standard for troubleshooting pulsation, leakage, and safety valve issues specific to the CSF-500 pump。
